Unit-Level Activity and Outcomes National Joint Registry
Total Page:16
File Type:pdf, Size:1020Kb
HIPS KNEES ANKLES ELBOWS SHOULDERS Unit-level activity and outcomes National Joint Registry 17th Annual Report 2020 Surgical data to 31 December 2019 ISSN 2054-183X (Online) National Joint Registry | 17th Annual Report Unit performance SRR is 1, the number of revisions is compatible with the number expected for that unit. This section shows indicators for hip and knee joint replacement procedures by trust, local health board • Control limits for funnel plots are normally set at and unit (hospital). This was first included in 2012 and 95% and 99.8% (approximates to 2 or 3 standard is part of the Government’s transparency agenda. deviations). Our normal six-monthly review process It is based on procedures carried out during the focuses on those above the upper limit of the latter. 2019 calendar year and submitted to the NJR by 29 One might expect, however, that one in 500 would February 2020. be outside the 99.8% limits (above or below) just by chance. In the following table we have highlighted in Hospital information (excluding outlier analysis) is red (1) units above the upper of the 99.8% control based on the actual operation date (1 January 2019 limits. Previously we have reported on those units to 31 December 2019). Where hospitals were open above the 99.99% control limits, but this has now been in 2019 for orthopaedic procedures but have not removed from the report. submitted data to the NJR, they are included in the Summary of the methodology for unit 90-day following table but with no procedure data. mortality rates: At the time of publication, it has not been possible to • The standardised mortality ratio (SMR) is plotted produce compliance figures for the financial year 1 against number of expected deaths. The SMR is the April 2019 to 31 March 2020 due to the unavailability number of actual deaths within 90 days of primary of data from the Hospital Episodes Statistics (HES) joint replacement, divided by the number of expected service. deaths in this period. The number of expected deaths has been calculated after adjustment for Unit outlier analysis methodology patient characteristics (age, gender and ASA grade Unit outlier analysis covers all primary procedures of patients). Analysis for hips has excluded operations performed from 15 February 2010 to 14 February undertaken for trauma, failed hemi-arthroplasty and, 2020. since November 2014 (when recording of this began), hips implanted for metastatic cancer. Unit outlier analysis covers all primary procedures • Control limits are as for revisions above performed from 15 February 2010 to 14 February 2020. Any units identified as potential outliers have been The outlier analyses made use of funnel plots from notified. All units are provided with their NJR Annual statistical process control methodology. These aim Clinical Report and additionally have access to NJR’s to distinguish normal variation between units (which online NJR Management Feedback system which is is to be expected) from unusual differences (termed updated annually. ‘special cause’ variation), which may indicate the need for further investigation. Funnel plots enable units of In earlier Annual Reports, the NJR has reported different sizes to be compared; performance indicators outlying hospitals based on all cases submitted to the based on smaller numbers of patients will have greater NJR since April 2003. To reflect changes in hospital variability and this in turn is reflected by wider control practices and component use, the NJR now reports limits. outlying hospitals based on the last ten years (15 February 2010 to 14 February 2020 inclusive) and five Summary of the methodology for unit revision rates: years of data (15 February 2015 to 14 February 2020 • The standardised revision ratio (SRR) is plotted against inclusive). These cuts of data exclude the majority the number of expected revisions. The SRR is the total of withdrawn outlier implants and metal-on-metal number of revisions divided by the number of expected total hip replacements from analysis, and thus better revisions for that unit’s caseload in respect of the age represent contemporary practice. group, gender and the diagnosis of the patients. If the www.njrcentre.org.uk 2 National Joint Registry | 17th Annual Report Please note for the data in the following table: Consent and Linkability are: Red if lower than 80% Amber if equal to or greater than 80% and lower than 95% Green if 95% or more • Linkability for some hospitals will be lower than expected if they have private patients from outside England and Wales • Data covers procedures carried out between 1 January 2019 and 31 December 2019 Outlier analyses are: Red if units are above the upper of the 99.8% control limits (approximates to 3 standard deviations (SDs)) Green if units are within the expected range.. The table uses the following footnotes: 1 Consent rate - percentage of cases submitted to the NJR with patient consent confirmed. 2 Linkability - the proportion of records which include a valid patient’s NHS number compared with the number of procedures recorded on the NJR. 3 Outliers with respect to 90-day mortality following primary operations performed from 2015 onwards [from 15 February 2015 to 14 February 2020 inclusive]. Units above the upper of the 99.8% control limits (approx 3 SDs) are flagged in red (∆). 4 Outliers with respect to revisions (at any time) following primary operations performed from 2010 onwards [from 15 February 2010 to 14 February 2020 inclusive]. Units above the upper of the 99.8% control limits (approx 3 SDs) are flagged in red (∆). 5 Outliers with respect to revisions (at any time) following primary operations performed from 2015 onwards [from 15 February 2015 to 14 February 2020 inclusive]. Units above the upper of the 99.8% control limits (approx 3 SDs) are flagged in red (∆). 6 Hospital has not submitted data. www.njrcentre.org.uk 3 National Joint Registry | 17th Annual Report Trust/Local Health Board/Company Outliers: Hips Outliers: Knees Average Number of Number of Consent Average Percentage age at Revision Revision Revision Revision procedures consultants rate (%) Linkability ASA grade (%) male operation 90-day rate since rate since 90-day rate since rate since Hospital 2019 2019 20191 (%) 20192 2019 2019 2019 mortality3 20104 20155 mortality3 20104 20155 Aintree University Hospitals NHS Foundation Trust Aintree University Hospital Sefton Suite 18 2 78% 94% 1.9 53% 69.3 University Hospital Aintree 479 21 96% 99% 2.3 44% 68.4 ∆ Airedale NHS Foundation Trust Airedale General Hospital 464 7 98% 100% 2.5 35% 72.2 Aneurin Bevan Health Board Nevill Hall Hospital 915 11 97% 100% 2.3 40% 70.1 ∆ Royal Gwent Hospital 439 16 100% 100% 2.4 37% 72.3 St Woolos Hospital 999 20 98% 98% 2.0 42% 68.4 Ysbyty Ystrad Fawr 8 2 100% 100% 1.9 50% 63.8 Ashford and St Peter's Hospitals NHS Foundation Trust Ashford Hospital 833 16 93% 99% 2.0 40% 70.4 ∆ St Peter's Hospital 94 14 93% 99% 2.6 34% 75.4 Barking Havering and Redbridge University Hospitals NHS Trust King George Hospital 575 14 89% 99% 2.3 39% 70.8 Queens Hospital 69 16 26% 90% 2.6 32% 75.4 Barnsley Hospital NHS Foundation Trust Barnsley District General Hospital 683 8 91% 98% 2.2 47% 68.8 The table uses the following footnotes: 1 Consent rate - percentage of cases submitted to the NJR with patient consent confirmed. 2 Linkability - the proportion of records which include a valid NHS number compared with the number of procedures recorded on the NJR. 3 Outliers with respect to 90-day mortality following primary operations performed from 2015 onwards [from 15 February 2015 to 14 February 2020 inclusive]. Units above the upper of the 99.8% control limits (approx 3 SDs) are flagged in red (∆). 4 Outliers with respect to revisions (at any time) following primary operations performed from 2010 onwards [from 15 February 2010 to 14 February 2020 inclusive]. Units above the upper of the 99.8% control limits (approx 3 SDs) are flagged in red (∆). 5 Outliers with respect to revisions (at any time) following primary operations performed from 2015 onwards [from 15 February 2015 to 14 February 2020 inclusive]. Units above the upper of the 99.8% control limits (approx 3 SDs) are flagged in red (∆). 6 Hospital has not submitted data. 4 www.njrcentre.org.uk National Joint Registry | 17th Annual Report Trust/Local Health Board/Company Outliers: Hips Outliers: Knees Average Number of Number of Consent Average Percentage age at Revision Revision Revision Revision procedures consultants rate (%) Linkability ASA grade (%) male operation 90-day rate since rate since 90-day rate since rate since Hospital 2019 2019 20191 (%) 20192 2019 2019 2019 mortality3 20104 20155 mortality3 20104 20155 Barts Health NHS Trust Gateway Surgical Centre 352 20 95% 99% 2.0 33% 66.2 Newham General Hospital 2 1 100% 100% 2.5 0% 70.4 The Royal London Hospital 255 16 99% 99% 2.5 47% 68.4 Whipps Cross University Hospital 236 10 98% 99% 2.4 37% 72.0 Basildon and Thurrock University Hospitals NHS Foundation Trust Basildon University Hospital 626 12 70% 97% 2.5 39% 71.5 Bedford Hospital NHS Trust Bedford Hospital South Wing 477 8 94% 97% 2.4 43% 70.8 Belfast HSC Trust Musgrave Park Hospital 2541 38 100% 100% 2.1 43% 67.9 Royal Victoria Hospital 171 18 62% 60% 2.4 26% 70.2 Betsi Cadwaladr University Health Board Abergele Hospital 543 9 100% 100% 2.0 42% 70.1 ∆ Glan Clwyd General Hospital 259 8 100% 100% 2.7 46% 74.3 Wrexham Maelor Hospital 593 10 97% 99% 2.2 40% 70.4 ∆ Ysbyty Gwynedd 609 9 93% 99% 2.4 43% 70.4 Blackpool Teaching Hospitals NHS Foundation Trust Blackpool Victoria Hospital 349 13 93% 97% 2.3 38% 71.0 The table uses the following footnotes: 1 Consent rate - percentage of cases submitted to the NJR with patient consent confirmed.